Scanning disk



35 rg N" l 0 3 3 SR f xa laalofaaa f 'scmmlne DISK l Fi-marea.' 2e. 192s invent?? Byron RCummKmg-S. 'l

` 1810593. A J No oRfrcLAssIE 20 apparatus are recon-verted isla-59s f unir-.en stares ear-geur -esrice'f'"` BYRON n. cuir-Mines, er' sensaties-.A nfnn'w rens, assesses, 'ro yentris-:san[unanime Confirmar, a cozasonan .or 'New Yom! A semanas DISK .amusants me@ Februar-y 26, 192s. serial nu. 342327.

My invention relates .to apparatus `for v transmitting pictures or images Ifrom one lace to another, and has or its principal objectthe provision 'of an improved scans n-ing disk which is suitabde for use in suchv apparatus y Various types ef picture transmitting and .receiving apparatus have been provided in the past. Many of these apparatus include a rotatable perforated disk or screen thrugh the perforations of which. light from a suitable source is projected upon the successive elemental areas of the picture for the purpose of producing rellecteid light impulses having intensities dependent on the color value of .these elemental areas. In the operation of suclrapparatus these light impulses ar'e converted into electrical impulses at the transxnittinff apparatus and lat the receiving into light impulses ivhich are applied to' a picture receiving member through a perforated disk similar to and rotated in synchronism With the rotatable disk of the transmitting apparatus.

In order to intensify the light transmitted through the rotatable scanning disk utilized inthe transmitting and receiving apparatus,A

it has been proposedto mount lens in enel-i of the perforationsof this disk. A scanning disk thus constructed is very expensive due both to thecost of the lenses and tothe large amount of very careful work required. to mount thelen'ses in the 'perforations ofthe disk. In accordance with my invention, these difficulties are avoided by making the scanvvning disk and lenses in a single integral structure such as molded glass, bakelite, quartz 'or the like. y

My invention will be better understoodv 40 from the olloiving description' when con sidered in connection with the .accompanying drawings and its scope 'will be .pointed out inthe appended claims.

Referring to the drawings, Fig. 1 illus- '45 trates a picture receiving apparatus wherein nay-invention has been embodied, and Figs..

2 to 5 shew various Adetails of a scanning disk constructed in accordance with my' invenv tion. In the operation of the receiving apparatus lllustrated by Fig. l, the electrical impulses received by an antenna 1 are transmitted.

throu haradio' receiver 2 to a lam 3. and the light from this lamp is applied te a picture receiving member 4 through a disk 5 which is rotated by suitable-means such as a motor 6. As is well understood by-tliose skilled in 'the art, the light of the lamp 3 modulated in ae col-(lance with the light reected .from the elemental areas of the transmitted picture is applied through the lenses 7 of the disk 5 'to thefcorres-pending elemental areas of the receiving member 4.

The disk 5 and lenses I are formed integrally with 'each other2 that is they are irl-ade ef a single piece of lsuitable transparent material. The lenses 7 are preferably arranged in the form of a spiral'aud ymay be 'molded together with the disk thus avoiding the' large amount of ca'1cf11l Work heretofore in; volved 1n grindmgand mounting the lenses. As indicated by Figs. v2 to 5, dierent types `of lenses 7 may be utilized in the disk It will be apparent that the lenses 7 may also be formed in the disk 'by grinding or" the like without losing the advantages made possible by applicants invention.v l

The embodiment the invention illustrated and described herein has been'selected for the purpose of clearly setting forth the principles involvedQf It Will be apparent, however, that the invent-ion is susceptible 0f being modified to meet the different condi- 'tions .encountercd in its use-and I therefore aim to'cover by the appended claims all medi cat-ions Within the true s :driel and sce of l 1 my invention..

What I clan-nV as neand desire to secure by Letters Ea-tent of the United States, is:A

l; A rotatable scanning mem-ber adapted for use `in picture tahmttipg appara'c'lls comprsing-a disk havngmountmg meansvai'a its center and having 'a series of lenses forming'therewithazonpece st'nluture md ar?- ra'nged n a row adjacentthe periphery of the disk.

2. A scanning member adapted for use in picture trmbmitting 2; pio-:m1 tus -omprisr'vng a disk having meansatts center 'orlrcitatn-bly mountng he same :md Vha'vng a series -0 lenses farmed therewith and :irrunged'in aspiral, said disk :mdlenses constituting a one-pieceintegral'structme. In witness whereof, vI have hereunto set my hand t-hs 251th dayA of'Februury, 19:29,y

BYRON R. 

